Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “nuclear”

See all translations

nuclear

adjective [always before noun]
 
 
/ˈnjuːkliər/
ENERGY B2 relating to the energy that is released when the nucleus (= central part) of an atom is divided: nuclear weapons/waste a nuclear power plantFuelsPetroleum products especially when used as fuelParticular theories and concepts in physics
PART OF ATOM relating to the nucleus (= central part) of an atom: nuclear physics Particular theories and concepts in physics
Translations of “nuclear”
in Korean 핵의…
in Arabic نَوَوي…
in Portuguese nuclear…
in Catalan nuclear…
in Japanese 原子力の, 原子(核)の…
in Italian nucleare…
in Chinese (Traditional) 能源, 核能的, 使用核能的…
in Russian ядерный…
in Turkish nükleer, atom çekirdeğinin merkezine ilişkin…
in Chinese (Simplified) 能源, 核能的, 使用核能的…
in Polish jądrowy, nuklearny…
(Definition of nuclear from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

More Learner's Dictionary definitions for “nuclear”

Definitions of “nuclear” in other dictionaries

Word of the Day

cold snap

a short period of cold weather

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More